The relative humidity of the concrete should not exceed 97%. The temperature of the ambient air, surface or coating should not fall below +15ºC during application or drying. Relative humidity of air should not exceed 80%.

Preparation

New concrete
Remove laitance by power grinding, vacuum grit blasting or hydrochloric acid etching. Choose the method best suited for the premises. After grinding remove dust carefully with a vacuum cleaner. Hydrochloric acid etching is carried out with diluted hydrochloric acid (1 part concentrated hydrochloric acid, 4 parts water). Rinse with plenty of water. Dry the floor.

Old concrete
Remove all grease, oil, chemicals and other impurities by MAALIPESU detergent. Remove old peeling paint layer by grinding or vacuum grit blasting. Clean out pot-holes removing all loose friable material. Open cracks with e.g. an abrasive tool. Remove loose material and dust.

Priming

Prime using Temafloor AC102 Primer. Pour the varnish onto the floor and apply as much as is needed to impregnate the concrete surface. If necessary, repeat priming to get a non-porous surface. Subsequent treatment can be carried out after 30 min.

Scatter sand of grain size 0.4–0.8 mm on the fresh primer coat to ensure the screed adhesion and prohibit gliding of the screed.

Patching

Patch pot-holes and cracks with a mixture of unthinned Temafloor AC102 and dry, clean sand. Mixing ratio e.g. 1 part by volume of varnish mixture and 1–2 parts by volume of sand of grain size 0,5–1,2 mm.

The floor can be levelled by using Temafloor AC102 Primer and sand of grain size 0,1–0,3 mm.

Diluting

Do not thin.

Application

Coating or screeding may be carried out after the primer has cured. A porous primer coat will result in holes and air bubbles in the finished coating.

Mixing of components

Mix the correct proportions of base and hardener powder thoroughly (approx. 2 minutes) by using an industrial hand drill with a paddle. The amount of mixture depends on the area to be coated and on the pot life of the mixture. Insufficient mixing or incorrect mixing ratio will result in uneven drying of the surface, weaken the properties of the primer and risk the success of the application.

Containers are provided with safety labels, which should be observed. Further information about hazardous influences and protection are detailed in individual health and safety data sheets.
A health and safety data sheet is available on request from Tikkurila Oyj.
For professional use only.

The above information, based on laboratory tests and practical experience, has been proved valid at the date marked on the product data sheet. The quality of the product is ensured by our operational system, based on the requirements of ISO 9001 and ISO 14001. As a manufacturer we cannot be responsible for any damages caused by using the product against our instructions or for inappropriate purposes.